<!-- <!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">

    <!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
    <script src="http://cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>

    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="http://cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    <title>Title</title>
</head>
<body>
<div class="row">
    <div class="col-sm-6 col-md-4">
        <div class="thumbnail">
            <img src=${imageUrl} alt="...">
            <div class="caption">
                <h3>${title}</h3>
                <p>${sub2}</p>
                <button type="button" class="btn btn-default btn-lg">
                    <span class="glyphicon glyphicon-star" aria-hidden="true"></span>
                </button>
            </div>
        </div>
    </div>
</div>
</body>
</html>
 -->